Patent US3352905A successfully refreshed from Google Patents.
US3352905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of lower aliphatic aldehydes
Assignee: Petro Tex Chemical Corp
•
Filing: 1965-09-07
•
Granted: 1967-11-14
•
Expires: 1985-09-07
Abstract
No abstract record available.
Inventors
- 👤 Ralph O Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:53
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/16; C07C51/21; C07C51/25; B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/195; B01J27/198; C07C51/23; C07C51/235; C07C51/252
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
100 words
A PROCESS FOR THE OXIDATION OF LOWER ALIPHATIC ALDEHYDES TO THE CORRESPONDING ACIDS WHICH COMPRISES CONTACTING AT A TEMPERATURE ABOVE 150*C. REACTION CONCENTRATIONS OF A GASEOUS MIXTURE OF SAID ALDEHYDE AND OXYGEN WITH A CATALYTIC ACTIVE COMPOSITION CONSISTING ESSENTIALLY OF A COMPLEX OF VANADIUM, PHOSPHORUS, OXYGEN AND A THIRD METAL COMPONENT SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT AND NICKEL, AND MIXTURES THEREOF, AND WHEREIN THE RELATIVE ATOMIC PROPORTIONS OF SAID COMPLEX ARE FROM 0.15 TO 0.50 ATOM OF VANADIUM TO ABOUT 0.30 TO 0.70 ATOM OF PHOSPHORUS TO ABOUT 0.05 TO 0.35 ATOM OF SAID THIRD METAL COMPONENT.
Claim 2
Dependent Claim
100 words
A PROCESS FOR THE OXIDATION OF LOWER ALIPHATIC ALDEHYDES TO THE CORRESPONDING ACIDS WHICH COMPRISES CONTACTING AT A TEMPERATURE ABOVE 150*C. REACTION CONCENTRATIONS OF A GASEOUS MIXTURE OF SAID ALDEHYDE AND OXYGEN WITH A CATALYTIC ACTIVE COMPOSITION CONSISTING ESSENTIALLY OF A COMPLEX OF VANADIUM, PHOSPHORUS, OXYGEN AND A THIRD METAL COMPONENT SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT AND NICKEL, AND MIXTURES THEREOF, AND WHEREIN THE RELATIVE ATOMIC PROPORTIONS OF SAID COMPLEX ARE FROM 0.15 TO 0.50 ATOM OF VANADIUM TO ABOUT 0.30 TO 0.70 ATOM OF PHOSPHORUS TO ABOUT 0.05 TO 0.35 ATOM OF SAID THIRD METAL COMPONENT.
Claim 3
Dependent Claim
83 words
A CATALYTIC ACTIVE COMPOSITION USEFUL FOR THE VAPOR PHASE OXIDATION OF ALIPHATIC ALDEHYDES TO ALIPHATIC ACIDS CONSISTING ESSENTIALLY OF A COMPLEX OF VANADIUM, PHOSPHORUS, OXYGEN AND A THIRD METAL COMPONENT SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT AND NICKEL, AND MIXTURES THEREOF, AND WHEREIN THE RELATIVE ATOMIC PROPORTIONS OF SAID COMPLEX ARE FROM 0.15 TO 0.50 ATOM OF VANADIUM TO ABOUT 0.30 TO 0.70 ATOM OF PHOSPHORUS TO ABOUT 0.05 TO 0.35 ATOM OF SAID THIRD METAL COMPONENT, AND AN INERT CARRIER.
Claim 4
Dependent Claim
83 words
A CATALYTIC ACTIVE COMPOSITION USEFUL FOR THE VAPOR PHASE OXIDATION OF ALIPHATIC ALDEHYDES TO ALIPHATIC ACIDS CONSISTING ESSENTIALLY OF A COMPLEX OF VANADIUM, PHOSPHORUS, OXYGEN AND A THIRD METAL COMPONENT SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT AND NICKEL, AND MIXTURES THEREOF, AND WHEREIN THE RELATIVE ATOMIC PROPORTIONS OF SAID COMPLEX ARE FROM 0.15 TO 0.50 ATOM OF VANADIUM TO ABOUT 0.30 TO 0.70 ATOM OF PHOSPHORUS TO ABOUT 0.05 TO 0.35 ATOM OF SAID THIRD METAL COMPONENT, AND AN INERT CARRIER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |